Magnetic properties of Co-doped TiO2 anatase nanopowders

Details Magnetic properties of Co-doped TiO2 anatase nanopowders Magnetic properties of Co-doped TiO2 anatase nanopowders

2008-09-07

arxiv.org/abs/0809.1256v2

Applied Physics Letters, 93 (2008) 222502 - 222504

Physics

Condensed Matter

Materials Science

13 pages, 5 figures

Scientific paper

10.1063/1.3036534

This letter reports on the magnetic properties of Ti1-xCoxO2 anatase phase nanopowders with different Co contents. It is shown that oxygen vacancies play a fundamental role in promoting the long-range ferromagnetic order in the material studied, in addition to the transition-metal doping. Furthermore, the results allow ruling out the premise of a strict connection between Co clustering and the ferromagnetism observed in the Co:TiO2 anatase system.

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